Advertising device.



N. STIPKOWITSGH.

ADVERTISING DEVICE. APPLICATION FILED SEPT. 21, 190B.

, Patented Feb. 22, 1910.

NIKOLAUS STIPKOWITSCH, 0F BERLIN, GERMANY.

ADVERTISING DEVICE.

To all whom it mwy concern: Be it known that I, NIKOLAUS S'ITPKO-WITSCH, painter, a subject of the Kin of .tion is an advertising. devicepreferably in the form of letters r signs and the like which is formedof indivldual deep prismatic reflectors provided with sources of light,so that advertising signs and the like are fective both byday and night.

In order that the invention may be clearly understood, reference will bemade'to the accompanymg drawing in which two embodiments are representedby way of example and in which:

Figure 1 represents in front ele'vation'a prismatic reflector of glass.a sectional elevation through the same. Fig. 3 illustrates same in sideelevation. Fig. 4: is a side elevation partly broken away showing thecombination of the reflector'with an incandescent lamp and itsattachment on a plate. Fig. 5 re resents in slightly perspective view afimshed .lettercomposed of a plurality of reflectors with incandescentlam s and a casing, and 6 illustrates in sectlonal elevation. a modi dform of reflector.

Similar characters of reference denote like parts in all the figures.

Each individual, device or letter is composed of single deep prismaticreflectors having an inner hollow space which is adapted to lodge asmall incandescent lamp and outside a multiple of refracting surfaces ofwhich for instance four are shown in the device illustrated in Fig. 5.These single prismatic members are suitably supported in ame workconforming m shape 'to the de-- sired devices. By virtue of these deeprismatic reflectors the daylight is as wel reflected producing then ashining and attractive appearance. At n'i ht the artificial light, thatis the small incandescent lamp Specification of Letters .Patent.Application filed September 21, 1908. Serial No. 454,010.

produced which are almost equally ef Fig. 2 is Patented Feb. 2 2, 1910.

I within the cavity of each prismatic reflector 1s llkewlse reflectedwhereby an attractive device is produced. Thus the device formingthesubject matter of this invention is highly effective both in day timeas well as at night, a eculiarity which has heretofore, to the'know edgeof applicant, not been produced.

Referring-to the drawing, advertising letters are made in the followingmanner: A letter which is of like form and size as the advertisingletter which is to be made is (flit out of a thin plate a of iron, forexam- P sary for attaching it to a support, whereupon the reflectors 0each provided with a lamp 7) in, a holder 6 are mounted on the late insuch manner that the desired letter is made. The whole device is finallyattijacheg in a casing '01, as clearly shown in The letter R of Fig. 5is shown-as a specimen because in.,it the shapes of the deep and isprovided with the holes necesi prismatic four-sided reflectors occurwhich are necessary for composing straight, round and slanting parts ofletters.

provided with a thin layer of metal, preferably gold, on their exterior.

The advertisin letters comprising deep rismatic glass re ectors andsources of light in the same have the following advantages (1-. Duringthe day they appear as shining lass letters, look superior and are verystriking on account of the many reflecting surfaces. b. When illuminatedby their sources of light they appear as sharply defined,

highly illuminating and readily legible letters. c. The number ofincandescent lamps required is about half that'necessary when letitersare demarcated by incandescent lamps on y. p

What I claim as my invention and desire to secure by Letters Patent is zp 1. An advertising letter composed of a multiple of deep prismatichollow glass reflectors having straight inner surfaces and curved outersurfaces, and a coverin of shining metal on said curved outer sur aces IAs a rule the glass reflectors are c0l0red*or 2. 'An' advertising'lettercomposed of a frame conforming 1n sha e to said letter, a

multiple of deep prismatic hollow glass reflectors having each fourstraight, reflecting inner surfaces and curved outer surfaces coveredwith gold, and an incandescent lamp in each of said reflectors, saidarran ement 10 reflectini both day light and artificia light so that t eletter is br lliant at all times.

Signed at Berlin, Germany, this 2nd day of September, 1908.

NIKOLAUS STIPKOWITSCH. Witnesses:

HENRY HASPER, WOLDEMAR HAUPT.

